Effects of Sintering Processes on Microscopy of CAS2-Al2O3 Refractory Materials

Yue Sheng Chai; Fu Rong Feng; Pin Bo Bai; Yan Qiu; Zheng Guan Liu; Chang Wei Gong; Yu Ming Tian

doi:10.4028/www.scientific.net/AMR.391-392.442

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 391-392Effects of Sintering Processes on Microscopy of...

Effects of Sintering Processes on Microscopy of CAS₂-Al₂O₃ Refractory Materials

Abstract:

CAS₂-Al₂O₃ (Anorthite-alumina) refractory materials were prepared with magnesium slag, kaolin from Shanxi province of China and alumina as raw materials. The effects of sintering temperature, holding time and the rate of heating on the microscopic structures were investigated. The results showed that the sintering temperature and holding time are more important to CAS₂-Al₂O₃ refractory materials than the rate of heating in a certain extent. According to XRD and SEM analysis results, it indicates that CAS₂ and Al₂O₃ are the main phases which occurs in the temperature ranges of 1350-1400°C. The higher the sintering temperature is, the greater the grains grow. At the same time, while the temperature rising, it tends to precipitate the alumina particles. It is appropriate to keep 2h in 4°C/min heating rate at sintering temperature. CAS₂-Al₂O₃ refractory materials have porous mesh structure.

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Periodical:

Advanced Materials Research (Volumes 391-392)

Pages:

442-446

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.391-392.442

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Online since:

December 2011

Authors:

Yue Sheng Chai, Fu Rong Feng, Pin Bo Bai, Yan Qiu, Zheng Guan Liu, Chang Wei Gong, Yu Ming Tian

Keywords:

CAS₂-Al₂O₃ Refractory Materials, Microscopy, Sintering

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